EP 2392824 A1 20111207 - AIR PUMP
Title (en)
AIR PUMP
Title (de)
LUFTPUMPE
Title (fr)
POMPE À AIR
Publication
Application
Priority
- JP 2010051233 W 20100129
- JP 2009019860 A 20090130
Abstract (en)
There is provided an air pump in which vibration noise generated in a drive unit of the pump is suppressed from being transmitted to the outside through a suction passage. A casing (17) of the air pump has a suction port (26-12) extending from an outer peripheral surface to inner peripheral surface of the casing, a noise reduction wall (26-9) annularly formed on the outer peripheral surface of the casing such that the suction port opens in a region of the outer peripheral surface of the casing surrounded by the noise reduction wall, and a lid member closing the opening of the top of the noise reduction wall and cooperating with the noise reduction wall and the outer peripheral surface of the casing to define a noise reduction chamber (26-14) communicating with the suction port. The noise reduction wall has an elongated noise reduction passage (26-11) extending circumferentially in the noise reduction wall. One end of the noise reduction passage opens on the outer surface of the noise reduction wall. The other end of the noise reduction passage opens on the inner surface of the noise reduction wall.
IPC 8 full level
F04B 39/00 (2006.01); F04B 35/04 (2006.01); F04B 39/12 (2006.01)
CPC (source: EP US)
F04B 35/04 (2013.01 - EP US); F04B 39/0038 (2013.01 - US); F04B 39/0061 (2013.01 - EP US); F04B 39/12 (2013.01 - EP US); F04B 39/121 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2392824 A1 20111207; EP 2392824 A4 20160323; EP 2392824 B1 20161123; JP 2010174799 A 20100812; JP 5144553 B2 20130213; US 2011280752 A1 20111117; US 8727753 B2 20140520; WO 2010087436 A1 20100805
DOCDB simple family (application)
EP 10735898 A 20100129; JP 2009019860 A 20090130; JP 2010051233 W 20100129; US 201113193071 A 20110728